The Book of Azrael

Where there are gods, there are also monsters, and Dianna knows this better than anyone. A thousand years ago, in the deserts of Eoria, she sacrificed her life as she knew it to save her dying sister, calling out for help and unknowingly binding herself to a far more terrifying force than she could have imagined. Now bound to Kaden, she is forced to carry out his will, even when it means stealing an ancient relic from the very beings who hunt her.

Once known as Samkiel and now living under the name Liam, the legendary World Ender is both feared and revered, a myth to his enemies and a king to those still loyal to him. After the devastating Gods War, he withdrew from the world, abandoning his crown and the responsibilities that came with it, leaving others to face the consequences of their shattered realm. But when those he cares about are threatened, he is drawn back into a world he had long avoided, only to face an enemy he believed had been imprisoned ages ago. As ancient forces rise and long-standing conflicts resurface, these two powerful figures, bound by history and fate, must set aside their differences to confront a threat that endangers not just their world, but every realm in existence.